Chief minister is a person elected as the head of the
government for a state or union territory and not for the
country.
So the answer for your question is "NOT APPLICABLE"
There is no chief minister for India as such...the Indian states
have chief ministers and India has Dr. Manmohan Singh as its prime
minister.

The Constitution of
India sets the principle qualifications one must meet to be
eligible to the office of the Chief Minister. A Chief Minister must
be:
a citizen of India
should be a member of the state
legislature. If a person is elected chief minister who is not a
member of the legislature, then he/she must become a member within
six months.
of 25 years of age or more